An inverted head and shoulders patter was identified on the 15 min chart of BPCL after the closing on Friday. The shoulders (Rs.354) )may act as a major resistance level for the same, and surpassing it may give us levels upto 360. On the contrary, the neckline (Rs. 349) may act as a major support level. If the price falls below this level we can witness a downward trend till Rs. 344.